Elbow prosthesis
AssigneeTornier SAS
InventorAlain Tornier
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Abstract
This invention relates to an elbow prosthesis comprising a humeral component forming a first, substantially cylindrical articulating surface and an ulnar component forming a second articulating surface adapted to be arranged around a part of this first articulating surface and to pivot about a longitudinal axis of this first articulating surface. The ulnar component is provided with the means for mounting a locking element forming a third articulating surface, extending the second articulating surface and adapted to be disposed around the first articulating surface, these second and third articulating surfaces extending together, in transverse section, over more than 180° about the first articulating surface.
Claims15
An elbow prosthesis including a humeral component having a first, substantially cylindrical articulating surface, an ulnar component, said ulnar component including a concave tab member forming a second articulating surface adapted to be arranged around a portion of said first articulating surface so as to pivot about a longitudinal axis of said first articulating surface, said ulnar component including a locking element forming a third articulating surface, means for mounting said locking element to said concave tab member such that said third articulating surface forms an arcuate continuation of said second articulating surface adapted to be disposed around said first articulating surface, and said second and third articulating surfaces extending together in transverse section of said first articulating surface over more than 180° about said first articulating surface.
The prosthesis of claim 7, wherein said concave tab members of said and said locking element of said ulnar component are each provided with a free end, the distance between said free ends being less than a minimum diameter of said first pivot surface when said locking element is mounted on said concave tab member.
Dependencies are inferred from the claim text.